Firefighters arrived at the single-family home on the 900 block of East 23rd at about 10 a.m. to find heavy fire, Chief Michael Postorino said. The fire, with lots of hotspots in the wood-frame home, was under control just after 11 a.m., said Battalion Chief William Henderson. A fire company is on scene while the electrical company comes to shut off the power, he said.

One firefighter hurt his knee and was transported to the hospital for evaluation, Henderson said. No civilians were injured.

Today’s heat and humidity meant firefighters were rotating in and out of the house, spending 20 minutes fighting the fire and 20 minutes cooling down. A few knelt on the pavement to wash their arms in water running down the street. Others used wet towels on their faces and necks and emptied water bottles over their heads.

The buildings on both sides of the house suffered minor damage, Postorino said, likely from the’ water.

The homeowner, Matilda Camilo, said she poured between $15,000 and $20,000 into renovating the house last year, including a new roof, new floors and new paint.

Her sister, brother-in-law and their children had been staying with Camilo for the last few months after they lost their jobs, she said. Two people were in the house when the fire broke out, she said.